<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- //卡片视图区域 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddpage">添加商品</el-button>
        </el-col>
      </el-row>

      <!-- table表格区域 -->
      <el-table :data="goodslist" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column label="商品价格(元)" prop="goods_price" width="95px"></el-table-column>
        <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
        <el-table-column label="创建时间" prop="add_time" width="140px">
          <template slot-scope="scope">{{scope.row.add_time | dateFormat}}</template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope">
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.goods_id)"
            ></el-button>

            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeById(scope.row.goods_id)"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 400]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        background
      ></el-pagination>
    </el-card>

    <!-- 修改用户的对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible3"
      width="50%"
      @close="editDialogClosed3"
    >
      <el-form :model="editForm3" :rules="editForm3Rules" ref="editForm3Ref" label-width="100px">
        <el-form-item label="商品名称">
          <el-input v-model="editForm3.goods_name"></el-input>
        </el-form-item>
        <el-form-item label="商品价格">
          <el-input v-model="editForm3.goods_price" type="number"></el-input>
        </el-form-item>
        <el-form-item label="商品重量">
          <el-input v-model="editForm3.goods_weight" type="number"></el-input>
        </el-form-item>
      </el-form>

      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible3 = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo3">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    return {
      //查询参数对象
      queryInfo: {
        query: "",
        pagenum: 1,
        pagesize: 10
      },

      //商品列表
      goodslist: [],
      //总数据条数
      total: 0,
      editDialogVisible3: false,
      editForm3: {},
      editForm3Rules: {
        goods_name: [
          { required: true, message: "请输入参数名称", trigger: "blur" }
        ]
      }
    };
  },
  created() {
    this.getGoodsList();
  },
  methods: {
    //根据分页获取对应的商品列表
    async getGoodsList() {
      const { data: res } = await this.$http.get("goods", {
        params: this.queryInfo
      });

      if (res.meta.status !== 200) {
        return this.$message.error("获取商品列表失败！");
      }

      this.$message.success("获取商品列表成功");
      //   console.log(res.data);
      this.goodslist = res.data.goods;
      this.total = res.data.total;
      // console.log(this.goodslist);
    },
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getGoodsList();
    },
    handleCurrentChange(newPage) {
      this.queyrInfo.pagenum = newPage;
      this.getGoodsList();
    },
    goAddpage() {
      this.$router.push("/goods/add");
    },
    //删除
    async removeById(id) {
      //  console.log(this.goods_id);
      const confirmResult = await this.$confirm(
        "此操作将永久删除该商品，是否继续？",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }
      ).catch(err => err);
      //如果用户确认删除，则返回值为字符串 confirm
      //如果用户取消了删除，则返回值为字符串 cancel
      if (confirmResult !== "confirm") {
        return this.$message.info("已取消删除");
      }
      const { data: res } = await this.$http.delete("goods/" + id);
      if (res.meta.status !== 200) {
        return this.$message.error("删除用户失败！");
      }
      this.$message.success("删除用户成功");
      this.getGoodsList();
    },

    //展示编辑用户的对话框
    async showEditDialog(id) {
      const { data: res } = await this.$http.get("goods/" + id);
      if (res.meta.status !== 200) {
        return this.$message.error("查询用户信息失败");
      }
      this.editForm3 = res.data;
      this.editDialogVisible3 = true;
    },
    // 监听修改用户对话框的关闭事件
    editDialogClosed3() {
      this.$refs.editForm3Ref.resetFields();
    },
    //修改用户信息并提交
    editUserInfo3() {
      //  console.log(this.id);

      this.$refs.editForm3Ref.validate(async valid => {
        if (!valid) return;
        //发起修改用户信息的数据请求

        const { data: res } = await this.$http.put(
          "goods/" + this.editForm3.goods_id,
          {
            goods_name: this.editForm3.goods_name,
            goods_price: this.editForm3.goods_price,
            goods_weight: this.editForm3.goods_weight,
            goods_number: this.editForm3.goods_number,
            cat_id: this.editForm3.cat_id,
            cat_one_id: this.editForm3.cat_one_id,
            cat_two_id: this.editForm3.cat_two_id,
            cat_three_id: this.editForm3.cat_three_id,
            goods_cat: this.editForm3.goods_cat
          }
        );
        if (res.meta.status !== 200) {
          return this.$message.error("修改失败");
        }
        //关闭对话框
        this.editDialogVisible3 = false;
        //刷新数据列表
        this.getGoodsList();
        //提示修改成功
        this.$message.success("更新用户信息成功");
      });
    }
  }
};
</script>

<style lang="less" scoped>
</style>